发明名称 |
ANORDNING FOER FRAMSTAELLNING AV SJAELVGAENGANDE FAESTEN |
摘要 |
A self-thread forming threaded fastener is disclosed having a straight thread on a shank of circular cross section and a tapered thread on the work-entering end. The tapered portion of the thread is of lobular root, pitch and crest surface cross sections and which lobular configuration is continued, but to a diminishing extent, on the first few threads on the shank section immediately adjacent the tapered section. |
申请公布号 |
FI61647(B) |
申请公布日期 |
1982.05.31 |
申请号 |
FI19700003384 |
申请日期 |
1970.12.15 |
申请人 |
RESEARCH ENGINEERING & MANUFACTURING INC |
发明人 |
MUENCHINGER HERMAN GUSTAVE |
分类号 |
F16B25/02;B21H3/02;F16B25/00;(IPC1-7):B21H3/06 |
主分类号 |
F16B25/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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